Methods of Identifying Ions (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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Flame Tests
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What is the purpose of a flame test?

To identify metal ions by flame colour

What colour flame does lithium (Li+Li^+) produce?

Crimson

What colour flame does sodium (Na+Na^+) produce?

Yellow

What colour flame does potassium (K+K^+) produce?

Lilac

What colour flame does calcium (Ca2+Ca^{2+}) produce?

Orange/red

What colour flame does copper (Cu2+Cu^{2+}) produce?

Green

What happens to electrons when a metal ion is heated in a flame?

They jump to higher energy levels

What happens when excited electrons fall back to their original energy levels?

They release energy as light

Why does each metal ion produce a different flame colour?

Each has a unique light wavelength

What is a practical application of flame tests mentioned?

Pyrotechnics and fireworks

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Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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